Re: BIG counterpoise

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Ed's description nicely separates the two functions: counterpoise and 
safety ground.

At 08:23 AM 12/10/2002 -0700, you wrote:
>Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><evp-at-pacbell-dot-net>
>
>As a lot of others seem to be pointing out, a counterpoise doesn't need
>to be very large in order to be effective.  A radius equal to the coil
>height will probably be good enough in all cases, one twice that would
>always be.  A good ground for the bottom of the coil should be
>worthwhile protection in case there's an arc to the primary HV power
>supply.  The water pipes should be more than adequate for that, no
>matter how long the lead.
>
>Ed